Jenkins

Question

我想通过 SSH 连接到 Jenkins slave。

所以我安装了"SSH Agent Plugin 1.15"和"SSH Slaves plugin 1.26"，添加了SSH凭证（使用私钥），但是在节点配置对话框的 启动方法 下拉列表中没有显示 "Launch Slave agents via SSH"。

我做错了什么？

我使用 Jenkins 2.129，并且我确信该条目在之前的几个版本的下拉列表中可用...

我在日志中发现异常：

WARNING: Failed to instantiate
Key[type=hudson.plugins.sshslaves.SSHLauncher$DescriptorImpl, annotation=[none]]; skipping this component
com.google.inject.ProvisionException: Unable to provision, see the following errors:

1) Error injecting constructor, java.lang.NoClassDefFoundError: hudson/tools/JDKInstaller$FileSystem
  at hudson.plugins.sshslaves.SSHLauncher$DescriptorImpl.<init>(SSHLauncher.java:1617)

1 error
    at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:52)
    at com.google.inject.internal.SingletonScope.get(SingletonScope.java:145)
    at hudson.ExtensionFinder$GuiceFinder$FaultTolerantScope.get(ExtensionFinder.java:432)
    at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
    at com.google.inject.internal.InjectorImpl.call(InjectorImpl.java:1016)
    at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
    at com.google.inject.internal.InjectorImpl.get(InjectorImpl.java:1012)
    at hudson.ExtensionFinder$GuiceFinder._find(ExtensionFinder.java:394)
    at hudson.ExtensionFinder$GuiceFinder.find(ExtensionFinder.java:385)
    at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:493)
    at hudson.ExtensionList.load(ExtensionList.java:380)
    at hudson.ExtensionList.ensureLoaded(ExtensionList.java:318)
    at hudson.ExtensionList.getComponents(ExtensionList.java:183)
    at hudson.DescriptorExtensionList.load(DescriptorExtensionList.java:192)
    at hudson.ExtensionList.ensureLoaded(ExtensionList.java:318)
    at hudson.ExtensionList.iterator(ExtensionList.java:172)
    at org.jenkinsci.plugins.xunit.AliasInitializer.init(AliasInitializer.java:47)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at hudson.init.TaskMethodFinder.invoke(TaskMethodFinder.java:104)
    at hudson.init.TaskMethodFinder$TaskImpl.run(TaskMethodFinder.java:175)
    at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:296)
    at jenkins.model.Jenkins.runTask(Jenkins.java:1068)
    at org.jvnet.hudson.reactor.Reactor.run(Reactor.java:214)
    at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoClassDefFoundError: hudson/tools/JDKInstaller$FileSystem
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
    at java.lang.Class.getMethod0(Class.java:3018)
    at java.lang.Class.getMethod(Class.java:1784)
    at hudson.model.Descriptor.<init>(Descriptor.java:289)
    at hudson.plugins.sshslaves.SSHLauncher$DescriptorImpl.<init>(SSHLauncher.java:1617)
    at hudson.plugins.sshslaves.SSHLauncher$DescriptorImpl$$FastClassByGuice$21d6d6.newInstance(<generated>)
    at com.google.inject.internal.cglib.reflect.$FastConstructor.newInstance(FastConstructor.java:40)
    at com.google.inject.internal.DefaultConstructionProxyFactory.newInstance(DefaultConstructionProxyFactory.java:61)
    at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:105)
    at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85)
    at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267)
    at com.google.inject.internal.ProviderToInternalFactoryAdapter.call(ProviderToInternalFactoryAdapter.java:46)
    at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
    at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
    ... 29 more
Caused by: java.lang.ClassNotFoundException: hudson.tools.JDKInstaller$FileSystem
    at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
    at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
    at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 45 more

Answer 1

除了我发现 NoClassDefFoundError "hudson/tools/JDKInstaller$FileSystem" at SSHLauncher after Jenkins Update 2.111->2.112 (50272).

这里提到我遗漏了 JDK-Tools Plugin.

Answer 2

我在 Jenkins 中设置 Node/Agent 时遇到了类似的问题。我无法在 Launch Method.

中找到 Launch Agent via SSH 选项

我所要做的就是通过 Jenkins 更新中心 安装 SSH Build Agents plugin（管理 Jenkins -> 管理插件）。

Jenkins - 缺少启动方法 "Launch slave agents via SSH"

Jenkins - Launch Method "Launch slave agents via SSH" missing

jenkins-plugins